Led modernization of legacy Java EE 5 monolith to microservices with Quarkus, reducing downtime by 30% and accelerating deployment by 25%. Transformed legacy EJB business logic and XML descriptors into modern CDI and Quarkus paradigms, ensuring zero regression across core banking operations. Upgraded persistence layers to Hibernate with Panache for enhanced transaction management, leveraging GraalVM native compilation for ultra-fast startup times.

Founding Developer for a pioneering project within the Portuguese Government's public health system, scaling RESTful microservices handling high transaction volumes with 99.99% uptime. Architected end-to-end event-driven pipelines utilizing Kafka, Azure, and Kubernetes, reducing operational latency by 20%. Enforced strict DevSecOps and GitOps automation pipelines to eliminate security vulnerabilities prior to production release.

Engineered high-concurrency RESTful microservices using Java 11, Spring Boot, and Hexagonal Architecture to support traffic monitoring demands. Resolved core architectural bottlenecks, cutting average request processing latency by 15% through optimized payload handling and clean code practices. Mentored junior engineers and performed stringent code reviews to enforce team-wide coding standards.

Orchestrated delivery schedules and technical execution across an 11-engineer cross-functional squad collaborating with international stakeholders in Asia. Designed fault-tolerant cloud microservices handling extreme data loads while mitigating critical technical debt.

Directed two distinct engineering squads overseeing high-availability Login and Health APIs processing 20 million requests daily. Streamlined release cadences and monitoring transparency utilizing AWS, Jenkins, and Kibana dashboards.

Developed comprehensive unit test suites for complex enterprise applications across Java, TypeScript, and C++. Integrated CI/CD automation frameworks with automated security compliance scanners across multi-cloud environments.